Well...This might helps <span>Parallel venation is characteristic of monocots, the veins are usually parallel to each other along the length of the leaf. </span> Pinnate venation is the veins are in a branching pattern, characterized by one major vein(called midrib) with smaller veins extending outward from it. <span>Palmate venation is characterized by two or more major veins extending outward from one point like the fingers extending form the palm of a hand</span>
Oxygen is created through photosynthesis when carbon dioxide from the air enters through the plant's leaves. Oxygen then exists the plant by its leaves and into the air.
